(Solved): Process control and instrumentation subject, please answer it
correctly. thanks
Question 1 (25 Mar ...
Process control and instrumentation subject, please answer it
correctly. thanks
Question 1 (25 Marks) -(CLO1, C5) a) Explain briefly the TWO differences between the open-loop and closed-loop systems. (CLO1, C2) [6 Marks] b) List four objectives of automatic control in real life. (CLO1, C1) [8 Marks] c) Figure 1 shows a temnerature feedback control svstem for a stirred-tank heater. i. Identify the function of the temperature feedback control system with regards to the following terms: (CLO1, C4) -Process. -Measurement. -Error detector. -Controller. -Control element. [5 Marks] ii. Draw a block diagram that represents the temperature feedback control system of the stirred-tank heater. Label each component in your diagram correctly. (CLO1, C1) [6 Marks]
A) OPEN LOOP CONTROL SYSTEM: HERE OUTPUT DOESNOT HAVE ANY EFFECT ON CONTROL ACTION OF SYSTEM. IT HAS NO FEEDBACK ELEMENT. HERE SYSTEM WORKING DEPENDS ON TIME..CONSTRUCTION OF OPEN LOOP SYSTEMS ARE EASY. IT IS STABLE SYSTEM.IT HAS FAST RESPONSE.IT IS